Book Image

Tabular Modeling with SQL Server 2016 Analysis Services Cookbook

By : Derek Wilson
Book Image

Tabular Modeling with SQL Server 2016 Analysis Services Cookbook

By: Derek Wilson

Overview of this book

SQL Server Analysis Service (SSAS) has been widely used across multiple businesses to build smart online analytical reporting solutions. It includes two different types of modeling for analysis services: Tabular and Multi Dimensional. This book covers Tabular modeling, which uses tables and relationships with a fast in-memory engine to provide state of the art compression algorithms and query performance. The book begins by quickly taking you through the concepts required to model tabular data and set up the necessary tools and services. As you learn to create tabular models using tools such as Excel and Power View, you’ll be shown various strategies to deploy your model on the server and choose a query mode (In-memory or DirectQuery) that best suits your reporting needs. You’ll also learn how to implement key and newly introduced DAX functions to create calculated columns and measures for your model data. Last but not least, you’ll be shown techniques that will help you administer and secure your BI implementation along with some widely used tips and tricks to optimize your reporting solution. By the end of this book, you’ll have gained hands-on experience with the powerful new features that have been added to Tabular models in SSAS 2016 and you’ll be able to improve user satisfaction with faster reports and analytical queries.
Table of Contents (18 chapters)
Tabular Modeling with SQL Server 2016 Analysis Services Cookbook
Credits
About the Author
About the Reviewer
www.PacktPub.com
Customer Feedback
Preface

Using the RELATEDTABLE function


The RELATEDTABLE function changes the context in which the data is filtered, and evaluates the expression in the new context that you specify.

This function is a shortcut for the CALCULATETABLE function with no logical expression.

The RELATEDTABLE function leverages the relationships built in the model Diagram view. In this model, there is a one to many relationship between the Manner_of_Crash table and the CRASH_DATA_T table. The RELATEDTABLE function is applied on the many table (Manner_of_Crash) and performs a lookup on the one table (CRASH_DATA_T).

In this recipe, you will create a new column to the Manner_of_Crash table. This recipe uses the RELATEDTABLE function to count the number of rows in the CRASH_DATA_T table that occur by the Manner_of_Crash. This will provide a summary by row. The REALTEDTABLE function has a required syntax of RELATEDTABLE(<tableName>).

How to do it...

  1. Open the Chapter_9_DAX solution, select the Manner_of_Crash table, and make...